Spring shackle



Marh 30 14926.

J. F. ocoNNoR slRING SHACKLE Filed March 16, .1925

'lmlu" i M "'25 shocks. .f

i 30 tern, to. thereby `reduce the -co'st ofl manu-iV '35 pointed outinthe claims hereinafter.

40 Figure 2^is an end elevational view ofthe i. 50 ofthe members of theshackle'bar as said UNITED i JOHN r. ocoNNomoFonroAeo,

" srmNe' sHAcxnnm Application fired mirthl 1e,V

To all 'whom t may concern.' Y

Be it known that I, JOHN F. OCoNNoR.` a citizen of the United States,residing at Chicago, in the county of Cook and State 'of Ht5 Illinois,have invented a certain.V new and useful Improvement'in Spring Shacklesof which the following is a full,clear, concise, and exact description,reference being had to the accompanying drawings, forming a part of thisspecification. v

This invention relates to improvements in spring shackles. l In theoperation of mines, it is the custom to employ relatively small minecars, `coupledtogether by a chainor other lsimple 'coupling, withoutprovision for cushioning the shocks under either buffer draft, with ythe resultthat the cars arevsubject-to rapidl deterioration.y f i A 20One object of my invention is to provide a very simple, inexpensive,vcompacty shackle bar, suitable for 'coupling together mine cars in theusual manner and wherein provisionis made for cushioning both buff anddraf-t More specifically, an object `of my invention isl to provide ashackle bar of the character above indicated, wherein the two principalpartsmay be cast-from the same patfacture.- g A 'Ihe inventionfurthermore consists'in ythe improvement `in the parts and devices andnovel combinations thereof, 'as 4more fully.

In the drawing forming a part of this specification,Figure 1 is 'a sideelevational view-'of portions of two mine cars showing myimprovem'entsin connection therewith.

shacklebar shown in Figure 1, the view in Y Figure 2 being turned,however, through an angleof 450' as compared with the position/occupiedby the shackle bar on the cars. Figure`3 is a longitudinalsectional view correspending to the section line -ofFigure-f Q2. Figure4 is ay vertical, transverse, secy tional view corresponding to thev'line "4-4'of -FigureS'. Figure 5 isa'side elevation ofone lmemberappears in side elevation in the pof sition shown in vFigure 3: V,And 'fFigure 6 is an end elevational view ofone ofthe springk followers. i cIn saidV drawing, the twomine cars are- AIRS? 'resistance C; two.followers D andv D- -twosprmg washers E and i form by reason oftwoarcuate-notchesor recesses ;18v- -18 placed therein` at diametricfoffset with respect to eachother 90?` so that i yILMNVOIS, AssIGrNoR,`lBY ivrnsnn As W. H. MINER, ING`.,"A ACoRr'oknrlilrolv oF' DELAWARE.,

srennnii'rsiiro l.

1923.' seriain. 625,450. Y

indicated broadly` the reference charac; ter JXy-each of 'said 'carsbeing'fsuitably .mountedfon wheels and providedwith heavy floor boards10; `'In the-,arrangement shown,

:each kcar is provided with -an endbuifer -plate- 11 and al couplingbary 12'gspa'ced upL iwardly therefrom, said- -plateandbar being.providedwith vertically alined openings'f'to receive'a coupling pinfl. s:"7" i The improved shacklebar, asshowmcom-` prises two like castings 'Band B";` .a spring fand` 'Ihe two-castings B and Bfare ofu'likeconstruction and made from the'same pat- *ternv to Yreduce cost ofmanufacture: Eachfo'f 1 said members, particular reference being'ha'd tothe member ,'B, as" shown in Figures 3,

4 and k5, isprovided at one "endfwithv vheavy ea'r14 having an opening15 there through to accommodate' the "coupling pin- 13, it'beingvunderstoodV that, when the parts are in position,-"-thfe-heavy.earsv 14will extend in horizontal planes in `alinennentwitl each other asshownin vFigure 1.v Eachof'sa'id 80' `membersBiis also V"provided withaIpair of longitudinally, extending, diametriCally'v disiposed armsy'lf3-16, each of arcuate'crosssed tion and extending through.anarcfof"-y 'l ear L14, the castingis provided with 'za vertii'-callyarranged end'wall'gl of substantially ,circular form, as bestyindicated 'in-Figure 2, the-same departlng froma true circular 90l allydisposedv pointsl to accommodatef the ends of the opposite member B or BastlieA case may be.- Qspection ofFigure 2, aline joiningthe cen,y

As will be clear from an inters of the'notches 18 'will extend throughY' the heavy ear 14 at an angle of 4575with the latten ''Inwardly of thevend wall`17, the arms 16- are provided with transverse shoulders 19-19,and a longitudinallyf extending groove or gui`deway20 is left between vthe arms, as in dicatedfffbest in'Figure, 3 'at l Vthe 'lefthand endthereof.'VA The ends of said recesses 2O inayfbegcurvedfa's indicated'at1 j the two arms ofthe one willfslide V.between Vreo' the two arms ofthe other andtogether all fourarmswill complete a substantially cy#lindrical vhousing or casing within whichris'` received the spring C, asbest illustrated inV Figure 4, and in this connection, it will be lnoted that by the arrangement so far de- I' scribed,.the two attachingearslA are leftin the same vhorizontal plane while the tw'o parts B andB are pattern. l y l .gEach of the Vspring followers 'D1 and TDcomprises two'sector-like ends 22-722l united by Van intermediatesection 23,-.the-arc of each section-like end 22 being 90" sov astoleave kmade from, the same i, two diametricallydisposedopenings 2%24:

tok accommodate therarmsof the correspond-YV ring member Bor B; Eachfollower ,D is

formed-w-ithv anropening25 extending therethrough 'WithinWhichhareceived afheavy V.rivet 2.6,;thelatterrigijdly uniting thefollower- D or D', with the corresponding mem- .ber Bg'or'B, as Yclearlylillustrated in Figure 3, at the outer 'orlfree ends-ofthe arms 16.

` The parts will beso arranged .that-.the inner viiat faces ofthefollowers D andD, will vbe(Y flush withvtliel c'orrespendingv` shoulders.19 whenl the Vpartsjarev innormal position.` The sprin'g washers E .andE. are ofV like from which is vextended an .'i/ ntegralfstud 28,centrally disposed, the, studs 28serving tofcenter ,fthe 'two Vcoilspring resistance `YC rand also being ,so proportionedthat they lit e oY y f In operation, assuminga draft action andV the member B heldstationary, the membery serveas limiting stops todeterinine the com-vkpression stroke of theshackle bar.

As clearly shown .in Figure'3,fclearance is left between the .respectivefollowers; D and D and theeiids ofthe recesseswithin kwhich f theyvmove, top f allow `for the desired compression stroke' of' tl'ieshacklebar.

.B, willbe pulled toward the left as viewedv f inEi'gure 3, therebymovingthefollower'l) l withv it and compressing the spring C1 againstthefwasher E', which is held by the follower KD", inturn rigidlyassociated with. the mem ber; B". Inl abutting action, assumin'g the`lmember. B held stationary, the memberwB can lmove toward the right asviewed in Figure 3, thereby carrying theV washer E [with it andcompressing therspring, against .1 be seen that ythe .shacklevbar whichIhave. designedis unusuallycompaot, thefspringisf well housed vandthus.protected frominjury, 1 andv the parts are of suchgconstruction thatVvj they maybe cheaply manufactured and assembled.f Furthermore, 'thejshackle is f of such desiginthat it maybe coupled with .the-v Y carsina, simple, well-knowii'manner. Y ,I have,` hereinY shownandidescribedwhatthe other `wasli'er'E which, in turn, is held 4fixed" againsttheshoulders 19 ofthe mem- From the precedf'fV 'g1- descriptiomvit .will

Arconstruction each comprising a flat plate 1,578,352 ,y Y Y --I now*lconsider the preferred manner of,

carrying outv the' invention, but the same is merely illustrative and Icontemplate all changes and modifications that. come within thescopelof` the claimsv appended hereto.

" I claim:`

L In. a resilient shackle,'the combinationV of two Voppositely arrangedyoke members, y

each having aniextension by which it'is adapted to be connected toV avehicle, each said member having abutment shoulders at one end andarigidly associatedfollower at the ,other` end, the two members beinganguvrlarly. offset 900, of arpair of washers within Y said members,v.each normallyin engagement withtheabutmentshoulders of one of saidmembers and-operable by the follower of the `other ofV said'v members;landcushioning means between said washers.

12. In aresilient shackle, the combination with two oppositely arrangedyoke members each Vhaving a'fiange extension at .one end thereof,v saidflanges extending in thesame planeand each adapted to beconne'ctedto avehicle, said members having each abutment eoy Ashoulders at one end'and afrigidly associated follower "at its other end, and -theitwo mem-k'bers being angularly offset909 ofapairof i washers within said members,'each normal-ly in engagement with;` the abutmentY shoulders -of one ofsaid memliiersandV operable by the follower. of ythe otherY of saidmembers; and cushioning meansbetweensaid washers.; 3. Ina resilientshackle,tlie combination with two oppositely arranged yoke members eachhaving aflange'extensionzat one endV thereof, said. vflanges extendinginithe `same plane and eachadapted to be connected toa., vehicle saidmembers having eachabutment Vshouldersat onelend and a rigidlyassociated' follower at its'other, andthe two members being angularlyoffset; 909, said .members being -in the form of castings and oflikeconstruction throughout; ofk a pair of washers" within said`members, each normally in engagement/ with the abutment shoulders of iioone ofsaidvmembers and `operable by the foli lower of the other ofsaidrmembers ,1., and cushioning means between said washers. .A

1l. Ina resilient shackle, the :combination with two linked-.membersand.cushioning means therebetween, each of.-saidf'members having,parallelly arranged, diametrically disposed flanges o f arcuate crosssection, the

flangesof onebeing angularly offset-90"V las*V housed; of. means fordetachably'.'attaching isp posed, spaced arms of arcuate cross section,the two members being angularlyoifset 90o and with the arms slidableupon each other; of a follower rigid with the ends of each pair ofarmsgra washer normally inv engage- Y ment with eac-h of said followers;and cushioning means between the washers.

6. vA resilient shackle, including in combination, spaced membersprovided with op-` positely disposed cooperating arms;v a followersecured adjacent the ends of each set of arms; and cushioning meansdisposed within said arms and operated upon by said followers, said armsbeing arranged to provide a closed liousinO'. Y Y

7; A resilient shackle, including in combination, spaced membersprovided with oppositely disposed cooperating arms, each set of armsbeing arranged to slidably extend outside of its related member;.followers se-y cured adjacent the ends of eachY set Aof arms, one ofsaid members having an abutment for cushioningl means and a recesspermitting' movement of the follower 'associated with the other oflsaid'members past saidfabutment; and cushioning mean'sassociated withsaid arms and operated upon by said abutment andfollowers Vuponactuation of said shackle in opposite directions.-

8. yA resilient shackle, includingA in combination, spaced i'nembersprovided vwith op# positely'disposed cooperating arms 'eachrsetcushioning` means in buff and draft; and

connecting ears formed on said members and disposed in a common plane; Yr

In witness that I claim' the foregoing I haveliereunto subscribed mynamethis 14th j day of March, 1923.

'of arms being arranged to slidably extend i JOHN OGONNOR. Y

